Alfie Patton is pictured with his girlfriend Chantelle Steadman and their newly born daughter. 13-year-old Alfie became Britain's one of the youngest fathers after his girlfriend gave birth to a baby girl on Monday, the Sun reported. [Photo: Xinhuanet/chinanews.com]

A 13-year-old British boy has fathered a child with his 15-year-old girlfriend, according to British newspaper The Sun.

Baby-faced Alfie Patton, became a dad when his girlfriend Chantelle Steadman gave birth to a baby girl Maisie Roxanne Monday.

Alfie was just 12 when he impregnated Chantelle, then 14, the Sun said.

The boy, who looks more like he's 8, not 13, vowed to be a good father.

"I didn't think about how we would afford it. I don't really get pocket money. My dad sometimes gives me 10 pounds (21 U. S. dollars)," the innocent-eyed teenager from Eastbourne, south England, told the newspaper.

 "When my mum found out, I thought I was going to get in trouble ... I didn't know what it would be like to be a dad. I will be good, though, and care for it."

Chantelle and the baby are living with Penny, Chantelle's jobless dad Steve, 43, and her five brothers in a rented council house in Eastbourne. The family live on benefits.

Alfie, who lives on an estate across town with mum Nicola, 43, spends most of his time at the Steadmans' house.